CVE-2024-26757: Linux kernel · md: Don't ignore read-only array in md_check_recovery()
Affects Linux kernelSource GCVE Database
Not known to be exploited · CVSS 5.5 Medium : upgrade to 6.8.0-2002.2 when convenient.
Data as of 26 Oct 2026, 13:47 UTC
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 10% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 6.8.0-2002.2
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitation evidence
Disclosed: evidence found.
CVE published 3 Apr 2024
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Upgrade the Ubuntu linux-raspi-realtime package to 6.8.0-2002.2.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu Pro Realtime 24.04 LTSlinux-raspi-realtimepkg:deb/ubuntu/linux-raspi-realtime?arch=source&distro=realtime/nobleOther threats | Affected
| Fixed in
|
Ubuntu 22.04 LTSlinuxpkg:deb/ubuntu/linux?arch=source&distro=jammyOther threats | Affected
| Fixed in– |
Ubuntu 22.04 LTSlinux-allwinner-5.19pkg:deb/ubuntu/linux-allwinner-5.19?arch=source&distro=jammyOther threats | Affected
| Fixed in– |
Ubuntu 22.04 LTSlinux-awspkg:deb/ubuntu/linux-aws?arch=source&distro=jammyOther threats | Affected
| Fixed in– |
Ubuntu 22.04 LTSlinux-aws-5.19pkg:deb/ubuntu/linux-aws-5.19?arch=source&distro=jammyOther threats | Affected
| Fixed in– |
Ubuntu 22.04 LTSlinux-aws-6.2pkg:deb/ubuntu/linux-aws-6.2?arch=source&distro=jammyOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
A patch is available to fix this issue. Users should apply the official kernel updates that address CVE-2024-26757 to prevent the hang condition. Since this is a kernel-level fix, upgrading to a fixed linux-azure kernel version is the recommended remediation. No additional mitigations are indicated by the vendor advisory.
Description
A vulnerability in the Linux kernel's md (multiple device) subsystem related to handling read-only arrays in md_check_recovery() has been resolved. The issue arises when dm-raid manipulates the read-only flag without properly stopping the sync thread, causing a hang during array stop operations. This flaw can lead to a denial of service by hanging the system during RAID recovery operations. The vulnerability affects specific versions of the linux-azure kernel prior to 6.8.0-2002.2 and several specific 4.x versions. A fix is available to address this synchronization and state management issue.
References
- ubuntu.com/security/CVE-2024-26757 (opens in a new tab)
- git.kernel.org/linus/55a48ad2db64737f7ffc0407634218cc6e4c513b (opens in a new tab)
- git.kernel.org/stable/c/2ea169c5a0b1134d573d07fc27a16f327ad0e7d3 (opens in a new tab)
- git.kernel.org/stable/c/55a48ad2db64737f7ffc0407634218cc6e4c513b (opens in a new tab)
- cve.org/CVERecord?id=CVE-2024-26757 (opens in a new tab)